Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [electric-vehicle]

Plug-in electric vehicles can use a variety of chargers. These chargers are often high-current, 240V installations and typically require dedicated circuits. Chargers may be hard-wired or plug in to sockets. Specifics vary by manufacturer and vehicle model.

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Why does Tesla recommend such a small gauge wire for their chargers compared to this chart I found online?

We are looking to install two NEMA 14-50 outlets for our kids to charge their electric cars, and I'm confused about wire choice. I thought I understood the correct wire to use, but then ran across a Tesla document that said something completely…
Nicholas
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80amp EVSE on subpanel

I’ve got a trivial problem that has become complicated by a non-trivial setup. My goal is to install an 80amp (100amp breaker) EVSE to charge my electric truck. An incentive from my electric provider will pay up to $850 for the installation of an…
cyclops
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1AWG with a smaller breaker?

I am thinking about having an electric vehicle supply equipment (EVSE) installed. In the interest of future proofing for an electric pickup truck coming on the market about a year from now, i would like to have 1 AWG wire installed for 100 amps @…
Nathan R
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What current capacity does 6 AWG AL TYPE SE have for an EV charger?

We recently finished our basement and had electrician run a cable to the garage for an electric vehicle charger that terminates in a junction box in the garage. From the 200A panel the cable is connected to a 2-pole 40A breaker and connected to…
user163047
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Can I safely run nm-b below 8' exposed perpendicularly between stud cavities in an unfinished garage?

My Siemens flush mount combo electrical panel is installed to the exterior of my garage. The garage isn't finished (open studs) and eventually I'd like to close it up with drywall (but not for this). Can I safely run nm-b below 8' exposed…
alan
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EV charger wiring - sub-panel requirements

I am looking to add a 30A outlet in my garage for the purpose of charging an EV. My home has 200A service coming through the main panel, and currently there are no sub-panels except one for the central air AC unit. My dryer is located on the other…
KM001
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Can I install two 60 amp EV chargers on a 100 amp subpanel?

I have 200amp service for the house and I'm looking to potentially add capacity for two EV chargers in the garage. I'm hoping to install two EV chargers that can charge up to 48 amps each. I know that in order to fit into the 125% continuous use…
will74
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AC line voltage sharing conduit with DC conductors for solar PV

I have an existing solar PV system; conduit to the house carries DC pairs for two "strings" of solar panels plus EGC ground. It'd be very convenient for wiring of an EV charger (EVSE), if I could run its AC wiring in the same conduit. The EVSE…
RustyShackleford
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How do I test for voltage drop?

I have a Tesla that I'm plugging in at work (NEMA 5-20 outlet) and my EV says I'm getting between 107-109 volts. NEMA 5-15 adapter registers 12 amps, and the NEMA 5-20 adapter, which should be 16 amps, lowers to 12 amps and gives a low voltage…
WillyWonka
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How much power can I supply for an EV charging circuit?

I would like to install an EVSE. The main panel is in the garage and I should have no problems running conduit a few feet to the location where I plan on mounting the charger. I will make sure I get the correct breaker, wire size, and receptacle…
bigchief
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sizing a Level2 EVSE to add to an existing subpanel

I have an existing 40-amp subpanel: a 125-amp main-lug load center, wired to a 40-amp breaker in the main panel with 8-3 NM-B. The subpanel has one existing load - a minisplit heat pump. I wish to add a Level 2 EV charger to it. I'm unclear as to…
RustyShackleford
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I want to install generic capability for future car charging. What 240v outlet on the outside of the house is acceptable?

I am wiring an old house with new wires and want to have an outlet outside for charging a potential electric car. There is no carport or roof overhang, so weather resistance is important. The wall is still fully open to studs and I have full access…
Steve Foutz
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Best way to ground equipment in a plastic box from metal conduit

My garage has an existing NEMA 14-50 outlet connected to the breaker box via EMT conduit. The conduit only has 2 hot wires and 1 neutral (all #6 THHN), with ground being provided to the metal box via the conduit itself (the conduit is bonded to the…
peter
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How to convert receptacle in wall to hard wired box?

As part of some recent (fall 2022) licensed and inspected electrical work I was having done anyway, I also had a NEMA 14-50 receptacle (with code-compliant 50A GFCI breaker in the subpanel) installed in my garage. The local power company is offering…
Jacob Krall
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EVSE Install Questions

I am on the brink of purchasing my first EV, and I have an electrician coming by this weekend to give me a quote for a charger install. Here are the details: 100amp panel Gas furnace, stove, hot water heater, dryer My electric utility uses a smart…
RobbyV
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